Tangential spheres geometric puzzle

Details Tangential spheres geometric puzzle Tangential spheres geometric puzzle

1974-09-23

1976-03-23

Oechsle, Anton O.

Amusement devices: games

Puzzles

Take-aparts and put-togethers

A63F 912

Patent

active

039456455

ABSTRACT:
A tangential spheres geometric puzzle uniquely formed from nine assembly pieces, of which eight pieces are based upon a triangular sphere array and a ninth piece based upon spheres disposed in a square array, providing a challenging educational and manipulative game. The pieces are assemblable into a tetrahedral pyramid.

REFERENCES:
patent: 1709660 (1929-04-01), De Bracht
patent: 2942356 (1960-06-01), Weintraub
patent: 3091870 (1963-06-01), Sangster
patent: 3837652 (1974-09-01), Kuwagaki et al.
Martin Gardner's New Mathematical Diversions from Scientific American, publ. by Simon & Schuster, New York, 1966, pp. 82-90.

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